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Mercedes-Benz TSB #LI05.10-P-075373
2021 Mercedes-Benz CLA250
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- Complaint Chirping or tapping noise originating in area of front crankshaft pulley when engine cold. Noise may lessen as engine reaches operating temperature. Attachments File Description M260 noise.mp4 Noise example Cause Harmonics from timing chain drive. Remedy Replace timing chain tensioner with part A2600502000. Note: This noise will not cause damage to the engine or other symptoms. The chain tensioner should only be replaced in the event of a customer complaint.
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